<template>
  <div class="tab-control">
    <div v-for="(item,index) in titles" class="tab-control-item" :class="{active: index === currentIndex}" @click="tabControlClick(index)">
      <span>{{ item }}</span>
    </div>
  </div>
</template>

<script>
export default {
  name: "TabControl",
  props: {
    titles: {
      type: Array,
      default() {
        return []
      }
    }
  },
  data() {
    return {
      currentIndex: 0
    }
  },
  methods: {
    tabControlClick(index) {
      this.currentIndex = index             /*之前做到这里然后去测试没有反应，原因是在上面的监听里面没有传入index*/
      this.$emit('tabClick',index)    /*把传到父组件home里面*/
    }
  }
}
</script>

<style scoped>
.tab-control {
  display: flex;
  text-align: center;
  font-size: 14px;
  background-color: #fff;      /*不设置颜色就会变成透明的*/
}

.tab-control-item {
  flex: 1;
  height: 40px;
  line-height: 40px;
}

.tab-control-item span {
  padding: 5px;
}

.active {
  color: var(--color-high-text);
}

.active span {
  border-bottom: 3px solid var(--color-tint);
}
</style>